Base | Representation |
---|---|
bin | 111110101100110… |
… | …1010111000011111 |
3 | 12102121211020111200 |
4 | 1331121222320133 |
5 | 13302043144442 |
6 | 544433250543 |
7 | 103064460366 |
oct | 17531527037 |
9 | 5377736450 |
10 | 2103881247 |
11 | 98a64a136 |
12 | 4a8703a53 |
13 | 276b49660 |
14 | 15d5ba7dd |
15 | c4a8234c |
hex | 7d66ae1f |
2103881247 has 48 divisors (see below), whose sum is σ = 3393202176. Its totient is φ = 1247400000.
The previous prime is 2103881239. The next prime is 2103881279. The reversal of 2103881247 is 7421883012.
It is not a de Polignac number, because 2103881247 - 23 = 2103881239 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2103881447) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 909222 + ... + 911532.
It is an arithmetic number, because the mean of its divisors is an integer number (70691712).
Almost surely, 22103881247 is an apocalyptic number.
2103881247 is a deficient number, since it is larger than the sum of its proper divisors (1289320929).
2103881247 is a wasteful number, since it uses less digits than its factorization.
2103881247 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2612 (or 2609 counting only the distinct ones).
The product of its (nonzero) digits is 21504, while the sum is 36.
The square root of 2103881247 is about 45868.0852772382. The cubic root of 2103881247 is about 1281.3676070763.
The spelling of 2103881247 in words is "two billion, one hundred three million, eight hundred eighty-one thousand, two hundred forty-seven".
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